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M. SC-HIEBENDREIN. WHEAT SCOURING MACHINE.

APPLICATION FILED DEC-14,1918;

Patented J 11116 24, 1919.

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WHEAT scolmme MACHINE.

APPLICATION FILED DEC 14. 191B.

1 ,307,760. Patented June 24, 1919.

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M. SCHIEBENDREIN. WHEAT gcounms MACHINE. APPIHIIIATHSN FILED DEC-1,4.1918.

1,307,760; Patented June 24, 1919.

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Specification of t s Patent-1 Patented June 2 1, 1919.

Application filed December 14, 1918. Serial No. 266,781.

To all whom it may concern:

Be it known that I, MATYAsSorIInBnN- DREIN, a citizen of the'UnitedStates, resid: iug at St. Louis, State of Missouri, have in ventedcertain new and useful Improvements in 'Wheat Scouring Machines, ofwhich the following is a full, clear, and

exact description, reference being had to the accompanying drawings,forming a ,part hereof. v i

The present invention is an improvement on the structure ofwheat-scouring machine forming the subject-matter of a prior U. S.

Patent numbered 994,510 issued to me under date of December 28, 1909 andhas for its object to provide means for increasing the efficiency of thepatented structure to 'accomplish which, certain features of the oldconstruction have been discarded and others substituted whereby a bettercontrol is had both over the character of the finalv product and therate of flow of the wheat through the machine. In other respects the,improved machine possesses the same advantages and attains the sameobjects as the patented structure, the specific advantages of theimprovements being made apparent from the following detailed descriptionof the invention inconnection with the accompanying drawings in which-Figure 1 represents a vertical transverse section on the line 1-1 ofFig. 2; Fig. 2 is a combined vertical longitudinal section on the zigzagline 2-2 of Fig. 1, and an elevation of one half the rear casingextension and dust compartment; Fig. 3 is a vertical longitudinalsectional detail on the line 33 of Fig. 1; Fig. 1 is an end elevation ofthe drum or casing showing the feed chute and valve-controlled air chuteleading to the casing; Fig. 5 is an end view of the rotor membercarrying the heaters with parts in section; Fig. 6 is a verticalsectional detail on the line 6--6 of Fig. 2 showing an inner face viewof the terminal'disk or head of the rotor; Fig. 7 is an enlargedsectional detail on the line 7-7 of Fig. 5; Fig. 8 is a transversesectional detail on the line 8-8 of Fig. 9; and Fig. 9is a side view ofthe upper end of the shifting lever actuatlng the rotary ring whichcontrols the beaten supporting arms of the rotor.

Referring to the drawings, C represents an outer cylindrical stationarycasing or drum, provided with an inner lining of carcapable of standingconsiderable wear.

Disposed axially through the casing is a shaft S driven by a belt pulleyB, the shaft having secured 1 thereto, at opposite ends w1th1n thecasing the heads or disks 2, 2,

said shaft and disks forming the rotor member of the machine. 'The disks2 are provlded with marginal flanges 3 and central hubs 4 projecting oneither side of the disk, the portions of the hubs on the side of theflanges 3 being the thicker. These thicker portions support suitablerings 5 lying close to the disks and freely rotatable about the hubs.Pivotally secured to the rings 5'by means ofbolts 6 are the inner endsof the beater-carrying arms 7, said arms passing loosely and freelythrough the flange 3 of the rotor disk or head 2 and proj ectingbeyondthe flange, an arm on one disk having a corresponding arm oppositethereto onthe opposite disk, each pair of arms being connected by aheater or plate 8 extending longitudinally the length of the casing ordrum C, the same as in the structure of my patent aforesaid. Operatinglooselythrough suitable openings 0 formed in the disks Qadjacent thehubs 4 are the oblong or polygonal portions .9 of suitablelongitudinally disposed reciprocable rods 10, 10, there being two suchrodsdiametrically opposite one anotherpsaid rods extending atoneendbeyond the disk 2 where shifting lever 11 whose one end is pivoted orhinged to a bracket 15 projecting from the timber T, the opposite endbeing loosely hinged to a block or nut 16 traversing a screw stem 17freely, rotatable in a bearing plate 18 secured to theheadof the drum orcasing C, the outer end of the screw being provided with an. operatingwheel 19. The parts just described are on the orderof an ordinary clutchshifting mechanism and no claim is made thereto. It is apparent that byrotating the screw 17 first in one direction and then the otheraireciprocating movement will be imparted to the nut 16 and anoscillating movement to the lever 14;

the latter imparting a reciprocating movei the disks. It is obvious fromthe foregoing that a movement of a spline 20 in one direction willnecessarily impart a rotary move ment to the ring5in a given direction,a movement in theopposi-te direction rotat-v ingthe ring in'the oppositedirection. The rings 5 are maintained in proper position on their hubs4E by the securing rings or caps 21 bolted to the hubs 4', the rings 21being open sufliciently to allow for the passage of the members 9, 10.Since the rings 5 are simultaneously controlledby the blocks or polyg+onal portions 9 of the rods 10, both rings will be rotated with anymovement of the rods as obvious from the foregoing. A ro tation of therings 5 will necessarily draw in the beater arms 7 when the rings arerotated in one direction (see dotted position in Fig. 5), the arms beingforced radially outward when the rings are rotated in the oppositedirection. In this way the distance ofthe heaters 8 from the inner wallsof the liner 1 may be carefully adjusted to suit conditions, the radialmovement of the arms 7 being facilitated by disposing the samesubstantially tangentially to the periphery of the rotor head 2 throughthe flange 3 of which they are guided.

In the structure of my patent aforesaid the grain was advancedthroughthe casing bysuitabledeflectors disposed on the inner surface" ofjtheperforated peripheral section of the casing. In the present improvement.these deflectors are dispensed with and in "lieu thereof '1 cause anadvance of the grain throughgthe casing by a proper control of the aircurrentsadmitted thereto in conjunction; with the feed. Thus, in thepresent embodiment of my invention I provideflthe casing C at one endwith a feed chute or hopper 22, the said hopper having formed. inconjunction therewith an air chute 23 to which the air admitted throughthe;,'openings O is controlled by a conventional damper or slide valveV'well known in the art, the grain and air discharging simultaneouslyintothe casing- C. The air is caused to circulate-through the casing bythe fan 'F theshaft 24 of'which is operated from tliepulley 25 connectedby a belt 26 to a pulley 27 on the shaft S. The fan casing 28 isprovided w'ith anexit flue 29 as shown. Thetasing' extension Bit-is muchon the order of that shown in the patented structure the walls thereofinclining to meet the walls of the dust compartment 31 the lower end ofwhich tapers into the form of a hop per (Fig. 1) to catch the heavyparticles of the impurities, the bottom of the hopper being providedwith a spiral conveyor 32 the shaft 33 of which is driven by a belt 3 1passing over the pulleys 35 and 36 carried by the shafts S and 33respectively. The spiral conveyor 32 discharges its material through thechute 37. The scoured wheat on the other hand discharges through anopening 0 controlled by a hinged valve or apron 38 and passes over aledge 39 in the outlet flue 40 constituting the lower terminal ordischarge mouth of the inclined flue 41. In the present embodiment of myinvention the fine 41 is offset from the casing C, thus forming aprotection for the lever 14, screw 17 and hand wheel 19 mounted directlybehind it. The flue 41 discharges 'into the chamber 31 behind thedeflecting wall 42, this arrangement being somewhat diflferent from thepatented structure but not materially so. In the present constructionthe perforated peripheral section, plate or sieve 13 is not unlike thatof the patented structure and serves the same purpose, towit, to permitthepassage therethrough of the chaff, straw, beards and other impuritiesseparating from the grain and suflicientl'y broken up to pass throughthe meshes of the sieve. In the present structure there is a directcooperation between the valve-controlled air chute 23 and the radiallyadjustable beater arms 7 (and their beaters 8). If the grain does notpass through the machine at proper speed the valve V is openedsuificiently to permit the necessary influx of airto the casing, theheaters being accurately set to clean the grain properly to conform. tothe travel of the grain under any particular rate of air influx. If forexample the grain comes through bearded or not sufliciently scoured, theair is admitted in reduced quantities to the chute 23, and the heatersproperly adjusted to more thoroughly beat the grain. On the other handif the grain has been scoured \too much, this may be due to either anundue outward adjustment of the heaters or to an insufiieient influx ofair from the chute 23 indicating that the grain passed through themachine too slowly. In that case more air would be admitted to the chute23 to propel the grain through the machine at a faster rate and theheaters adjusted so as not to scour so hard. Thus between the chute 23and the radially adjustable heaters we can bring about any desiredresults.

The operationof the machine is substantially as follows: Rotation beingimparted to the drive shaft S, the fan F and conveyer 32 will be driven.throughthe connections previously described. The wheat is dumped or fedin at the chute 22 which is. at the inlet end of the casing, whereuponthe rotating heaters or blades 8 will rub the grain against the surfaceof the carborundum. liner 1, the length of time during which the grainremains in the casing depending on the intensity or volume of influx ofair into the casing through the chute or conduit 23 as previouslydescribed, and the degree of scouring depending both on the rateof airinflux and on the degree of radial, adjustment imparted to the heaters8. As the grain is carried around between the heaters or blades 8 andthe lining 1, the chaff, straw,

beards and other impurities become, sepa rated from the grain, andbroken up sufficiently to pass through the reticulated or perforatedplate or sieve 43, and are drawn up by the suction of the fan around thede flector 42 through the compartment 30 and through the fan casing andout throughthe discharge flue 29, the cleansed and scoured wheatdropping through the opening 0 onto the ledge 3 9,and out through thedischarge mouth 40 where it is caughtin any suitable receptacle (notshown). As the scoured wheat travels along the ledge 39 any lightparticles accompanying the same will be drawn up through the flue 41past the deflector 4 2 through the dust chamber 31 and into the fancasing 28 and out; and finally such particles as escape the rising aircurrents on account of increasedweight will drop down to the bottom ofthe compartment 31 whence they are discharged by the spiral conveyer 32toward and into the chute 37 and disposed of in any suitable manner. Thetangential disposition of the blades or heaters in the present structureoffers the same advantages as it does in the patented structure; and asto the arms 7, their tangential disposition permits the rotatable rings5 to control them to better advantage,

an arm disposed tangentially responding more readily tothe rotarymovement of the ring than would an arm disposed radially. It will beobserved that the operator by turning the wheel 19 can oscillate thelever 14 while the rotor of the machine is running, thereby impartingthe necessary oscillation to the lever 14 which in turn reciprocates therods 10 and blocks 9, and splines 20 by which the rings 5 are rotated.In this way an adjustment of the heaters may be effected without.stopping the machine. The scourer in the present improvement may beconsidered as composed of the rotor or the relatively stationary member,and the rings 5 which constitute the movable or adjustable member.Features shown but not alluded to are well understood in the art andrequireno description in the present connection.

claim is:

1. In a grain scouring machine, a suitable cylindrical casing havinginlet and discharge means for the grain, and provided with a perforatedperipheral section for the escape of dust-laden air, air movingapparatus for causing an air circulation through the casing, a shaftdisposed about the axis of the casing, a scourer on the shaft comprisinga rotor member free to revolve about the axis of the shaft, anadjustable member on the rotor having a moyement independent of therotary movement of the rotor but revolving in conjunction therewith,heaters exterior to said adjustable member and sweeping in proximity tothe inner surface of the peripheral Wall of the casing, and arms hingedto the adjustable member and coupled to the heaters for regulating thedistance of the boaters from the aforesaid wall of the casing. r v H 2.In a grain scouring machine, a suitable cylindrical casing having inletand discharge means for the gram, and. provided with a perforatedperipheral section for the escape of the dust-laden air, means forcausing a circulation of air through the caslng, a scourer in the casingcomprlsing a shaft disposed along the axis of the casing, disks on theshaft spaced a suitable distance apart, rings disposed about ,the shaftadjacent to the disks and capable of a rotary adjustment about the axisof the shaft, arms hinged to the rings and leading outwardly therefromin a direction substantially tangent to the peripheries thereof, meanson the disks for guiding said arms, beaters on the outer ends of thearms, and means under the control of the operator for imparting rotaryadjustments to the rings and corresponding radial adjustments to theboaters.

3. In a grain-scouring machine, a scourer comprising a shaft, disksmounted thereon and spaced apart, said disks having outer flanges andcentral hubs, rings mounted rotatably on the hubs adjacent the disks,

beater arms leading tangentially from the rings and hinged thereto andoperating freely through the flanges, and projecting a suitable distancebeyond the same, and

means disposed along the shaft for imparting rotary movements to therings and conse quent radial adjustments to the free ends of the beaterarms.

l. In a grain-scouring machine, a scourer comprising a shaft, disksmounted thereon and spaced apart and provided with hub portions, ringsmounted rotatably on the hubs adjacent the disks, longitudinallyreciprocable rods disposed between the disks and. provided withpolygonal portions loosely traversing the disks, splines on saidpolygonal portions disposed at a slight angle to the axis of the, shaftand freely traversing correspondingly inclined slots in the rings,whereby with a reciprocation of the rods in either direction the ringswill respond rotatively to said reciprocations, beater arms hinged tothe rings and leading outwardly therefrom in substantially tangentialdirections, and means on the disks for guidingsaid arms, the free endsof the arms having imparted thereto a radial adjustment with the rotarymovements of the rings aforesaid.

5. In a grain scouring machine, a scourer comprising a shaft, disksmounted thereon and spaced apart and provided with huh portions, ringsmounted rotatably on the I hubs adjacent or in proximity to the disks,longitudinally reciprooa'ble rods disposed between. the disks at pointsdiametrically opposite one another and provided With polygonal portionsloosely traversing the disks, said rods extending beyond the outerCopies of thisfpatent may be obtained for face of one of the disks,splines on the polygonal portions aforesaid disposed at a slight inclineto the axis of the shaft and operating freely through correspondingslots formed in the rings for imparting rotation to the lin s with alongitudinal movement of the ro s in either direction, arms pivotallycoupled at their inner ends to the rings and extending beyond theperipheries of the disks, and disposed su'bstantially tangentiallythereto, means on the disks for uiding the arms, and heater platesconnecting the outer ends of opposite arms of the respective disks, theplates having a radial adjustment impartedthereto to and from the axisof the shaft according to the direction of rotation imparted to therings.

In testimony whereof I aflix my signature, in presence of two Witnesses.

MATYAS SCHIEBENDREIN.

Witnesses:

EMIL STAREK, J 0s. A. MICHEL.

five cents each, by addressing the Commissioner of Patents, Washington,D. 0.

